Those are all beautiful quilts. I see no problem using a longarm to quilt them. I agree with Iceblossom, they have been machine quilting quilts for over a 100 yrs. If they weren't, usually it was because they couldn't afford one, or they preferred hand quilting. I found the name of the first quilt and the block used is the Periwinkle blk. I found the blk in a couple of my books, but the first book was from 1942 titled 1001 Patchwork Designs. I have actually made the same quilt, but haven't quilted it yet. LOL But it will be quilted with a machine, domestic. I can't do the hand stitching anymore. Good Luck and enjoy quilting them, and the family will love them.